WAVE-POWER ELECTRICITY GENERATION SYSTEM
The invention relates to a wave-power system for generating electricity, in which a pendular buoy captures the wave energy and transfers the movement unidirectionally to a flywheel inside a pressurised box. The shaft of the flywheel transmits the energy to a hydraulic pump and the hydraulic flow travels through flexible tubes into a Pelton turbine. The shaft of the turbine moves a variable-weight flywheel which transmits its movement to a transmission shaft to which multiple reduction gearboxes are connected in series. A high-pressure air compressor is connected for each gearbox, the compressors being placed in parallel and joined to a steel matrix that is in turn connected to a large-volume hyperbaric tank for storing pneumatic energy. A throttling control the speed and power thereof, and the mechanical force of the pneumatic motor is transferred to the electric generators.
The present invention relates to a system for generating energy from wave power, solve and satisfy global demand for clean energy and renewable energy (
The Non-Conventional Renewable Energies (NCRE) are emerging as a clean, safe and efficient alternative, although costs are not yet competitive due to the limited presence, some examples of the Netherlands with 2 MW plants, Portugal with 400 Kw plants, UK with 500 Kw, Denmark with 4 MW still the existing mechanisms are insufficient, however, the exploitation of own, hydro, wind or geothermal sources for electricity generation, is positioning internationally as a sustainable option, and in the medium and long-term. Several methods exist for exploitation of wave and tidal energy, but still no standardization is achieved because an efficient and cost effective method has not been found. Chile has 4200 KM coastline with favorable conditions for the extraction of wave energy in Fig la shows the KW per meter of coastline as global estimates of Topex Poseidon joint project of NASA and CNES.
Currently known systems, present problems of continuity in the delivery of energy by depending directly on climatic and oceanographic variations they are also directly proportional to the wave front because they directly use the potential energy of the movement , another variable is the cost of investment.
The following patents use various methods to rescue the wave energy
U.S. Pat. No. 7,755,224 B2 [CIP H02K35/02], use deep waves, therefore, the recovered energy is only a vertical movement which is inefficient uses only horizontal oscillation by the difference between the valley and the crest of the wave.
U.S. Patent 2010/0230965 A1 [IPC: F03B 13/14 F03D9/00], system and method of power generation using a combination of wind and water energy, the problem lies in that the continuity and energy release depends directly on the existence both elements
U.S. Patent 2003/0110767 A1 [IPC F03C 1/00] Method and installation of electrical generator by ocean waves, the main problem is the elasticity of the main stem because it absorbs a lot of energy, to make it more efficient requires very large waves, the second problem lies in that continuity and energy release, depends directly on waves existence conditions.
Patent ES 2356719 (T3) or U.S. 2008231054 (A1) [CIP E02B9/08, F03B13/06, F03B13/12] The system operates by movement of floats connected to the horizontal arms. These arms move the hydraulic pumps to inject water into a hyperbaric chamber. This chamber delivers water through an outlet control valve. This system has two problems, the elastic compression of a liquid is less than that of air, also in the hyperbaric chamber using seawater will require more maintenances to remove micro organisms in our model by using air, require less maintenance. The Capture of the waves as you use long arm to catch the waves the torque is dissipated by arm elasticity also requires larger waves.
Attached list of patents granted or applied referred to the obtain of the wave energy
Patent U.S. 2002/0155767 A1 [CIP: B63B 22/00], method of electrical generation by buoy motion. Patent US005027000 [CIP: F03B13/24], method and power generation system using sea waves. Patent US006109863A [IPC: F03B 15/06], submersible power generation system and associated methods. Patent US006756695B2 [CIP: F03 13/10] Method and system for wave energy conversion using float or buoy. U.S. Pat. No. 7,554,215B1 [IPC: F03B 13/10 F03B 13/12] generator and method for generating electricity from subsurface currents.
Other patent references US 007453165B2; 520090243293; US 20060232074A1, US 20050121915, US 20080018114, US 20100283249, US 20090165454A1; U.S. Pat. No. 7,579,705B1; US 20080053084A1; U.S. Pat. No. 7,845,880B2; U.S. Pat. No. 4,851,704; U.S. Pat. No. 7,915,750B1; U.S. Pat. No. 7,557,456B2; US 20050279085A1, US 20100207392A1; MX 2010011157 (A); AR 229752 (A1); GTP 119868615 (A); CR 2451 (A1); ES 2354899 (A1); CL 12372008 (A); ES 2356719 (T3); ES 2224832 (A1); ES 2224832 (A1); BR 9205901 (A), U.S. Pat. No. 7,566,983 (B1)
The State of the Art on Pneumatic MotorsPneumatic motors develop more power relative to their size than most other types of engines and they don't get damaged even when blocked by overloading regardless of the time they are locked. When the load drops to its normal value, the engine returns to normal operation; startup, stop and change direction of rotation are instant, the speed control is infinitely variable, just with a valve mounted to the engine inlet, varying the working pressure.
Pneumatic piston engines have 4 to 6 cylinders. Power is developed under the influence of pressure enclosed in each cylinder, they work at lower engine revolutions than vane motors, they have a high starting torque and good speed control they are used to work at low speed with heavy loads; may have axially or radially arranged pistons, in the following we attach patents of internal combustion radial engines that are susceptible to pneumatic adaptation.
U.S. Pat. No. 1,931,401 [cip: F02B 75/22], U.S. Pat. No. 5,297,448 [cip: F16H 25/14], U.S. PATENT 2003/0183071 [cip: F01L, 21/2], U.S. PATENT 2006/0260465 A1 [cip: F16J 15/18] U.S. PATENT 2004/0231504 A1 [cip: F01B 13/00]
Properties of Waves to ExplodeThe present invention utilizes the waves crashing in the surf (
The invention improves and / or resolves three aspects for the efficiency in generating electric power from wave energy, these aspects are: Continuity, Energy storage and power amplification.
The pneumatic energy storage mitigates the oceanographic and climatic variations that affect the behavior of the waves and also can amplify or concentrate power for a greater power generation.
The invention is an electric power generating system (
WAVE 10 system (
Waves capturer (
In the pressurized flywheel housing 130 (
Internal gear 136 (
In the entry of the submersible water pump 140 a particulate filter 160 is connected to the output of submersible water pump 140 water 145 is ejected to the steel pipe in the shape of an square “Y” 141; The “Y” pipe 141 has two inputs one for each submersible pump 140a , and 140b and a single output 129 to the outlet manifold 123.
The outlet manifold 123 has one input and multiple outputs 126 to the jointed pipe 121, which distributes the flow of submersible water pumps to the surface through the jointed pipe 121.
The jointed pipe 121 (
The truck-sled 180 (
The truck-sled 184 brake is composed of three elements, the anchoring tab 183, ellipsoidal 187 and retracting spring 188, the anchoring tab 183 causes torque in its upper part by a rod 181, has a pendular swing (
AIR 20 system (
The rotation of axis 223 (
The flywheel shaft 241 has a pulley 242 (
The gearbox 270 (
The gearbox has a clutch lever 271, enable to get in and get out of operation the air compressor 260, depending on the hydraulic flow of the system WAVE 10.
The output (
Pneumatic steel pipes 90 (
Motor-generator 40 (
On the end of transmission shaft 451 (
The present invention utilizes the breaking waves, surf
By using the waves kinetic energy we get the following benefits: clean, green, sustainable and renewable energy; Its modular application would allow to extend the power of increasing energy generation increasing the WAVE 10 systems and increasing the size of the accumulators 40 and MOTOR-GENERATOR system 40, i.e, it has modularity.
A secondary application is to use this same method in run-of-river small hydropower stations using potential hydraulic energy, to generate pneumatic energy allowing to generate bigger electricity power potential.
The Present Invention Operates as FollowsThe WAVE 10 system (
The pendular buoy has a normal vertical rest position by the weight of the semi sprocket 151 and the buoyancy of the buoy 151, the maximum arc of the trajectory is given from the “PA” 155 to the “PB” 154,
The WAVE 10 system pumps water, its volume is transported to the surface by the jointed pipe 121 and for the matrix to the of Pelton turbine of the system AIR 20, the turbine shaft transmits its mechanical force to the gearboxes and in turn to the axes 273 of the high pressure air compressors 270, the compressed air is stored in the large capacity hyperbaric tanks 301, is important for the tanks to be of large dimensions to extend the operation of the pneumatic motors 410, to exploit the elastic property of air, the compressed air is controllably released through a retention valve 430 which controls the flow 417 (
Claims
1. Power generator system starting from wave energy, which improves aspects of continuity in the delivery of energy and efficiency in extracting kinetic energy of ocean waves, wherein a partially submerged pendulum buoy 150, mounted on a movable platform 170 which is fixed to a truck-sled 180 to move freely through rails profiles in “H”, to adjust to fluctuations in tide height; pendular buoy 150 moves a external gear 133, of a pressurized box 130, the axis of the external gear and an internal gear are connected by a unidirectional bearing 135, the internal gear 130 moves a flywheel 131 along the inner face where it has a gearing; the wheel shaft 138 drives a submersible water pump 140, pump water is spliced to a steel distributor 123 having outputs, each output is spliced to a jointed pipe 121, to bring out the flow of sea water to the coastal border; the jointed pipe 121 are spliced to a hub 122, which drives the hydraulic fluid flow in a steel die 70, toward a Pelton turbine 220 the turbine shaft drives a flywheel 240 with variable weights 244, the flywheel shaft rotates a transmission shaft 251, which splices serially, multiple reduction box 270, for each reduction box is spliced an air compressor of high pressure 260, the compressors working in parallel, the air outlets of the compressors are spliced to a steel pipe 90 which in turn is spliced to a large volume hyperbaric tanks 301, to store energy; the output of the hyperbaric chamber is spliced to a restriction valve 410, in turn is spliced to pneumatic motors 410, the transmission shaft 410 of the pneumatic motors is spliced to a gear box 420 which in turn is spliced to generators 440.
2. Electric generator system according to claim 1, wherein the pendulum buoy 150 is composed of a hollow float 157, at each end has two round profiles, each round profile has a bore for a transverse shaft plus two semi gearwheels 151.
3. Electric generator system according to claim 1, wherein the momentum wheel 240 includes steel balls 244, the momentum wheel 240 has several steel balls 244 one at each bolt 246, the steel ball 224 has a bushing that allows a travel from the center to the edge of the momentum wheel 240, the crank is attached to a bracket 248, the bracket 248 is fixed to a bushing 245 on the shaft 241 of the momentum wheel 240, the bushing 245 is pushed by a spring 243 outwardly.
Type: Application
Filed: Aug 27, 2012
Publication Date: Aug 7, 2014
Inventor: Eduardo Javier Egaña Castillo (Santiago)
Application Number: 14/342,475
International Classification: F03B 13/10 (20060101);